Path: csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!eternal-september.org!feeder.eternal-september.org!mx04.eternal-september.org!.POSTED!not-for-mail From: Thad Floryan Newsgroups: comp.os.linux.networking Subject: Re: connecting 3 computers without a router Date: Sat, 31 Dec 2011 10:40:26 -0800 Organization: ThadLABS Lines: 24 Message-ID: <4EFF571A.4010509@thadlabs.com> References: <4ef7c6a0$1@x-privat.org> <97729dc5-638f-4fab-816b-3f82fc2e24dc@c42g2000prb.googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Injection-Info: mx04.eternal-september.org; posting-host="Ffcll78vPb9FFcAvz2XZlA"; logging-data="31700"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/HObATR9mMwU2DgfQEGaKPC/ZdICOZuIE=" User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) In-Reply-To: <97729dc5-638f-4fab-816b-3f82fc2e24dc@c42g2000prb.googlegroups.com> Cancel-Lock: sha1:vQBPPI97K1fHL0a2ol7kA8n0cTc= Xref: x330-a1.tempe.blueboxinc.net comp.os.linux.networking:938 On 12/30/2011 3:13 PM, David Schwartz wrote: > On Dec 25, 4:58 pm, "Orson Cart" wrote: > >> Suppose I have 3 pizza boxes, each has 2 x 1 Gbps ethernet ports. >> If I connect each to both of the others with crossover cables, >> I eliminate the delay of a router. >> Is this topology used by anybody? Does it have a name? >> Any hidden surprises? > > You don't need crossover cables for Gigabit. That topology is used, > it's called point-to-point. What it eliminates is not routing but > switching. Switching delay is generally considered negligible, but > there are some applications where minimizing it helps, and Gigabit > ports tend to be pretty cheap. There's a big difference between "cheap" and "inexpensive"; quality can be inexpensive: